Finding the Fourth Proportional to 78,457.96, 118,113.82 and 71,482.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,457.96 : 118,113.82 = 71,482.78 : x
2. Step 2: Convert to fraction form
   78,457.96/118,113.82 = 71,482.78/x
3. Step 3: Cross multiply
   78,457.96x = 118,113.82 × 71,482.78
4. Step 4: Simplify right side
   78,457.96x = 8,443,104,210.02
5. Step 5: Solve for x
   x = 8,443,104,210.02/78,457.96
6. Step 6: Final answer
   x = 107,613.10